Hi, I am new here,

I have read all the threads about the cooling systems. I got a bit confused about the cooling system. All I am asking is the correct procedure of how to bleed the cooling system. I have a Cinquecento Sporting and its reaching high temperatures lately. Never came in the red zone. I am thinking that there is an air lock and this is why it is reaching high temperatures.

Thanks people.

Top it up with water, open first the bleed screw next to the windscreen washer reservoir, then the one where the heater hose goes through the carpet stuff on the bulkhead. Each until water comes out. Sometimes a little blowing and sucking helps.

Most likely causes of overheating are failed thermostat (check that the top radiator hose gets warm all along its length) radiator fan switch -- check it comes on.

Ok, will do that. Does the car have to be running? I will have to blow air from the expansion tank till water comes out? The thermostat was changed. Replaced with an original one. Fan comes on but does not stay long.

yes bleed while running, try to blow or suck air from that hose next to washer cap, when water comes out close it, doing it 2-3 times will help, have heater on, wait to get engine warm and try bleed again through screw on right side to battery, repeat 2-3 times-watch out for hot coolant, but this worked for me. turn off and fillup coolant. we dont have this in guides..??

Let me see if I understood. First to make this process good is to drain the blue coolant. Open the expansion tank with both the bleeders closed and fill it till max. When reached till max, I will blow air from my mouth and release the bleeder of the radiator which is need the headlight, keep the same pressure I do the same thing for the bleeder of the heater matrix. Let go of the expansion and close. Start the engine when cool and do the same thing when the engine runs.

I have read on another thread that you do not bleed it when running. Getting confused now...

I always bleed the car cold.

It takes a while as the thermostat is only passing the bare minimum, but done properly I've never had a problem.

Cheers

SPD

I usually bleed cold, run it for a bit, and bleed again. The first time I often take the plug all the way out, the second time I treat it more like I was bleeding a radiator (that is, open it only a little).

cinqblk said:

I will blow air from my mouth ...

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The antifreeze is a slow but deadly poison, try googling austrian + wine + antifreeze, I'd wash any residue of hands and not kiss the filler cap.

It is simplest to fill the car cold, with 100% water and bleed it cold, fill it with both bleed screws out and as the ends of the bleed screw hose can gum up, try a knitting needle gently. when you get water running out of the 1st bleed screw do it up, when you get water out of the 2nd bleed screw do it up.

This is not a blow job it is wash hands and have biscuot and tea while the car slowwwwwwww fills...

Then add antifreexe to header tank, syphon water from the header (without using mouth) if it is full of water. Halfords sells hose for screenwasher always carry some as the Fiat tubing is terrible. it will wait until Halfords closes...

After a few heat cold cycles the radiator header may have some air but I'd not worry about that, it is not upsetting the cooling...

The anti freeze in the header will be mixed with the water in the engine rapidly.

Check for leaks carefully as the car warms up and check the level in the header does not fall over several weeks before being happy again... If your fan does not come on in traffic be worried...

If the car is new to you assume it is full of gum and use a prorietary Al safe rad flush before it overheats...

Noel

Anti freeze isn't a very deadly poison: how much do you think you'd need to swallow to equal a bottle of cheap Austrian plonk?

You missed the slow from the slow and deadly poison.

The Austrians poured their adulterated wine into the sewage system along with normal rain and soil drainage, after they detected the trace addative was going to kill.

This dilute 'wine' cocktail totaled the symbotic bacteria in their sewage system so that the now raw sewage wiped out the fish in a river.

Now I do realise you are a higher life form that sewage symbotic bacteria but I'd suggest you dont need much anti freeze to damage your liver beyond self repair but dont worry a replacement is (free) on the NHS.

Noel

Well, I work with Thorium most days, I doubt if a tiny taste of anti-freeze will cap that!

I'll bring a Geiger counter to the next outing to locate you then...

Noel

fingers99 said:

Well, I work with Thorium most days, I doubt if a tiny taste of anti-freeze will cap that!

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Burning question... why??

beecon said:

Burning question... why??

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TIG electrodes. Opinions vary as to the effects, but the life expectancy, I think, of weldors in the States is around 65. WTH.

fingers99 said:

Top it up with water, open first the bleed screw next to the windscreen washer reservoir, then the one where the heater hose goes through the carpet stuff on the bulkhead. Each until water comes out. Sometimes a little blowing and sucking helps.

Most likely causes of overheating are failed thermostat (check that the top radiator hose gets warm all along its length) radiator fan switch -- check it comes on.

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Hi, i cant get any water to come out of the bleed pipe that comes out of the bulk head, is this important? ive tried blowing into it but its just got a rusty watery residue inside the pipe....

bazerino100 said:

Hi, i cant get any water to come out of the bleed pipe that comes out of the bulk head, is this important? ive tried blowing into it but its just got a rusty watery residue inside the pipe....

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Is this with the engine hot or cold? Was the engine running or not?

If the engine is cold or you were only doing this at idle speed you are unlikely to get coolant come out.
Bring the rpm up to about 2k rpm and that should push coolant out of your bleed points.
The other option is to warm the car up and use the pressure built up in the system to push the work out of the bleed points. This is obviously more dangerous due to the high water temps. Fine if your careful though.

I've never had an issue bleeding the coolant on a cinq. It's not the best designed cooling system, but it's easy to bleed!

bazerino100 said:

Hi, i cant get any water to come out of the bleed pipe that comes out of the bulk head, is this important? ive tried blowing into it but its just got a rusty watery residue inside the pipe....

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Have you flushed the system out?

Sounds like its had either none, or the wrong coolant in it.

Cheers

D

dac69er said:

Is this with the engine hot or cold? Was the engine running or not?

If the engine is cold or you were only doing this at idle speed you are unlikely to get coolant come out.
Bring the rpm up to about 2k rpm and that should push coolant out of your bleed points.
The other option is to warm the car up and use the pressure built up in the system to push the work out of the bleed points. This is obviously more dangerous due to the high water temps. Fine if your careful though.

I've never had an issue bleeding the coolant on a cinq. It's not the best designed cooling system, but it's easy to bleed!

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Ive left it running till the fans kick in, but will not come out.....

rallycinq said:

Have you flushed the system out?

Sounds like its had either none, or the wrong coolant in it.

Cheers

D

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I flushed it out last year & put fresh coolant in it, there is plenty of heat coming out when i put the fan on so im not too concerned......